particle swarm algorithm 3D path planning 1 Backpropagation 1 Contact Stress 1 Contact performance 1 Distribution parameters 1 Extreme value 1 Height distribution 1 Higher order statistics 1 Mises stress 1 Parameter estimation 1 Particle swarm algorithm 1 Regression analysis 1 Rough surfaces 1 Roughness surfaces 1 SHADE algorithm 1 Surface contact 1 Surface measurement 1 Surface roughness 1 UAV 1 contact stress 1 container transportation 1 height distribution 1 passenger-like container train 1 regression analysis 1 roughness surface 1 train running plan 1